Hi, Thanks for the information. Do I have to set any property in the gnu radio uhd to phase lock the two oscillators to on board clock or they are by default locked to it?
Can the external reference be gps? What settings need to be done in UHD to sync the two oscillators to gps? Actually I am receiving a stationary signal using two ports TX/RX and RX2 but I am not getting a constant phase difference with time. It can happen if two oscillators are not synced . Please help. ________________________________ From: USRP-users <usrp-users-boun...@lists.ettus.com> on behalf of Marcus D. Leech via USRP-users <usrp-users@lists.ettus.com> Sent: Sunday, September 16, 2018 5:10:23 AM To: usrp-users@lists.ettus.com Subject: Re: [USRP-users] Sampler clock common or not? On 09/15/2018 01:35 AM, Koyel Das (Vehere) via USRP-users wrote: Hi, I am using USRP 2954R. I have connected one antenna to RX2 of RF0 and another antenna to TX/RX of RF1. Both are used for receiving. Can someone tell me if RX2 of RF0 and TX/RX of RF1 are phase locked that is the signal received by the two have a constant phase difference with time or not? Are the two LOs controlled by a common master oscillator or two LOs run Independently? Regards, Koyel Both synthesizers are phase-locked to either the on-board clock, or an external reference clock, if you're using an external reference. So, they'll have no relative phase-drift with respect to one another (except for thermal effects, but those have a very small magnitude).
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